Stop or locking device



H. HOPF.

STOP 0R LOCKING DEVICE.

APPLICATION FILED MAY 25,1921.

Patented Nov. 7, 1922.

Patented Nov. 7, 1222.

entries HERMAN HOPE,

OF BUFFALO, NEW YORK.

STOP OR LOCKING DEVICE.

Application filed May 25,

To all whom it may cancer-n.

Be it known that I, HERMAN Horn, a citizen of the United States, residing in Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Stop or Ilocking Devices, of which the following is a specification.

This invention relates to a stop or locking device which is adapted to be applied to a window, door, or elsewhere, for the purpose of preventing the openingof a movable member of the window or door except to such an extent as is permissible by the position of the stop device and thus prevent entrance into a building or room from the outside thereof, of an unauthorized person.

This invention has for its object to pro-- vide a stop for this purpose which can be easily applied to windows and doors as now commonly constructed, which can be readily put in its operative or inoperative condition, which can be produced at comparatively low cost, and which will not detract from the appearance of the door or window when installed.

In the accompanying drawings:

Figure 1 is a fragmentary vertical section of a window equipped with my improved stop device. Figure 2 is an elevation of the same. Figures 3 and 4 are detached perspective views of the holder and stop forming parts of this improved stop device. Figure 5 is a fragmentary vertical section, showing this invention appliedto a door. Figures 6, 7 and 8 are perspective views showing modified forms of stops embodying my invention.

Similar characters of reference refer to like parts throughoutthe several views.

In Figs. 1 and 2 my invention is embodied in a window having upper and lower sashes 10, 11, arranged side by side and sliding at their vertical edges in runways 12, 13 formed on the side pieces or stiles 14 of the window frame. In this particular installation, my improved stop device is applied'to the inner side of one of the uprightside bars 15 of the upper sash in a position to be engaged by the upper end of the lower sash for the purpose of preventing either of these sashes from being opened to such an extent as to permit the entrance into the building of a person from the outside.

In its general construction this stop device,

1921. Serial No. Manes.

as shown in Figs. 1, 2, 3 and a, comprises a holder which is adapted to be mounted on a support and a stop which is removably mounted on the holder and adapted to be en gag-ed by a movable member of the window. In the preferred form of the holder the same comprises a base 16 which is constructed in the form of a plate and two seats or sockets 17, 18, which are arranged at opposite ends of the base and having the form of hooks, the mouths of which open toward each other in the form of horizontal guideways. This base plate 16 is secured to the inner side of one of the side bars of the window sash by means of screws 19 or otherwise, so that the seats or guideways 17, 18 are arranged parallel with the planeof the sashes.

The stop is preferablyconstructed in the form of a block 20 which has a vertical rear side 21 adapted to engage the front side of the baseplate 16 and an inclined front side 22 which inclines from its lower end upwardly and forwardly to the upper end of this block and is adapted to be engaged by the upper edge of the lower window sash. At its upper and lower ends, this stop block is provided with coupling lugs 23, 2% which are adapted to be slid into engagement with the seats 17, 18 for the purpose of connecting the stop block with the holder when it is desired to put the stop device in its operative position for preventing the window from being opened from the outside. When the .stop block is in this operative position. as

shown in Figs. 1 and 2, its inclined front side 22 overhangs the upper end of the lower sash. If, at this time,ait is attempted to either raise the lower sash or to lower the upper sash, these sashes can only be moved vertically to such an extent relatively to one another until the upper end of the lower sash and the inclined front sideo f the stop block engage with each other, after which further movement of these sashes in this direction is positively prevented. During such engagement of the lower sash withthe inclined face of'the stop block the wedging engagement occurs between these parts which causes the upper sash to be pressed downwardly and the lower sash to be pressed inwardly against therespective runways of the window frame, so that the window sashes become firmly interlocked with the frame and'further opening of the sashes is impossible. I

By providing the stop blocl: with an inclined front face which is engaged by the lower sash, allowance is made for a considerable looseness which may exist between the sashes and the runways in the frame, which looseness frequently exists in windows of this type particularly when they are old and have become worn. In order, however, to prevent the two sashes from passing each other in case the vertical edges of the same or the runways of the frame have become worn unduly, the upper end of the stop block is provided with a horizontal shoulder which faces downwardly and which is adapted to be engaged by the upper end of the lower sash in the event that an unusual looseness exists between the twosashes and the frame and thereby positively prevents the two sashes from being moved vertically relatively to each other in an opening direction to such an extent as would permit of ingress to the building.

In order to prevent the stop block from being pushed laterally out of engagement from the holder by inserting a thin knife or similar article, between the horizontal meeting rails of a sash, after they have been slightly opened, a locking device is provided which positively interlocks the holder and the stop block. I

A simple form of locking device for this purpose consists of a locking pin 26 which is adapted to enter a vertical opening 27 in the hook forming the upper seat and an opening or recess 28 formed in the upper coupling lug 23 of the stop block. l Vhen the holder and stop block are thus interlocked with each other by means of the pin 26, the block can not be moved out of engagement from the holder in a horizontal direction parallel with the frame of the window and thus frustrates any attempt to gain entrance to the building in this manner.

lVhen the sashes of the window are new or fitted comparatively tight, the shoulder 25 of the stop block may be omitted, as shown on the stop block 29 in Fig. 6, whichform of stop block also shows the front side of the stop block curved instead of inclined on a straight line, but the operation of the same is substantially like that described in Figs. 14.

instead of providing the stop block with an inclined-face for engaging a movable member, this block 31, as shown in Fig. 7, may be of rectangular form, and provided at its lower end with a side stop face 32 which is adapted to be engaged by the upper edge of the lower window sash, or by any other movable member adapted to be stopped thereby.

When it is desired to vary the extent which the two window sashes may be opened relative to each other, this is rendered possible by providing the upper window sash with more than one holder, which 'arefarranged in a vertical row one above the other, two of such holders being shown, for example, in Figs. '1 and 2, either one of which is adapted to receive the stop block, so that when applying the stop block to the holder nearest the lower sash, only a small opening movement of the sashes relatively to each other will be possible, while a greater opening movement of these sashes in this direc tion will be permitted when the stop block is mounted on the holder of the upper sash, which is farther from the lower sash. Such increased amount of opening movement is desirable for the purpose of ventilation'of the room without, however, permitting in gross to the building by unauthorized persons.

in the construction shown in Figs. at, 6 and 7, the stop block is made in the form of one solid body and is comparatively narrow, but if desired the same may be made somewhat wider and provided with a vertical slot 33 and a horizontal opening 3a, as shown in Fig. 8, so as to practically divide the block into two sections which are angular and skeleton form, and thus reduces the amount of metal which is used in the stop block and avoids making the same unduly heavy when a stop block of considerable width is desired.

In case this stop device is to be used for preventing undue opening of a door 'from' the outside of room or building, the holder may be secured in a horizontal position to the underside of the head 35 of the door or frame, as shown in Fig. 5, so that upon swinging the door 36 inwardly upon its hinge 37 the upper edge of the door will engage with the inclined front face of the stop block and thus limit the extent to which the door may be opened and prevent unauthorized entrance into the building or room.

This stop device is not only exceedingly simple and inexpensive in construction, but the same can also be readily put into operative condition when required for use aswell as removed when not required, and when installed, the same is not unsightly in appearance, thus rendering'the same particularly suitable for use on high grade windows or doors,as well as those of less expensive construction.

I claim as my invention: I

1. A stop or locking device for movable members of windows, doors, &c., comprising a holder adapted to be secured to support, a stop removably mounted on said holder and adapted to be engaged by said movable member, said stop and holder being provided with corresponding openings, and a locking pin adapted to engage with the openings of said holder and stop.

2. A stop or locking device for movable members of windows, doors, 830., comprising .a holder adapted to be secured to a support,

and a stop removably mounted on said holder and provided with an inclined face adapted to be engaged by said movable member;

3. A stop or locking device for movable members of Windows, doors, 520., comprising a holder adapted to be secured to a support,

and a stop removably mounted on said holder and provided with an. inclined face adapted to be engaged by said movable 10 member, and at the salient part of said inclined face with a stop shoulder.

HERMAN HOPF. 

